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[PATCH 3/4] index-pack: move second pass code into separate function

From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date
Feb 25, 2012, 10:56 UTC
Message-ID
<1330167376-24859-4-git-send-email-pclouds@gmail.com>
In-Reply-To
<1330167376-24859-1-git-send-email-pclouds@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/index-pack.c |   54 +++++++++++++++++++++++++++----------------------
 1 files changed, 30 insertions(+), 24 deletions(-)
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index ab24dd8..e1e858a 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -719,6 +719,35 @@ static int compare_delta_entry(const void *a, const void *b)
 				   objects[delta_b->obj_no].type);
 }
 
+/*
+ * Second pass:
+ * - for all non-delta objects, look if it is used as a base for
+ *   deltas;
+ * - if used as a base, uncompress the object and apply all deltas,
+ *   recursively checking if the resulting object is used as a base
+ *   for some more deltas.
+ * - if the same object exists in repository and we're not in strict
+ *   mode, we skipped the sha-1 collision test in the first pass.
+ *   Do it now.
+ */
+static void second_pass(struct object_entry *obj)
+{
+	struct base_data *base_obj = alloc_base_data();
+
+	if (((!strict && !verify) ||
+	     (strict && !verify && obj->type == OBJ_BLOB)) &&
+	    has_sha1_file(obj->idx.sha1)) {
+		void *data = get_data_from_pack(obj);
+		sha1_object(data, obj->size, obj->type, obj->idx.sha1);
+		free(data);
+	}
+
+	base_obj->obj = obj;
+	base_obj->data = NULL;
+	find_unresolved_deltas(base_obj);
+	display_progress(progress, nr_resolved_deltas);
+}
+
 /* Parse all objects and return the pack content SHA1 hash */
 static void parse_pack_objects(unsigned char *sha1)
 {
@@ -773,38 +802,15 @@ static void parse_pack_objects(unsigned char *sha1)
 	qsort(deltas, nr_deltas, sizeof(struct delta_entry),
 	      compare_delta_entry);
 
-	/*
-	 * Second pass:
-	 * - for all non-delta objects, look if it is used as a base for
-	 *   deltas;
-	 * - if used as a base, uncompress the object and apply all deltas,
-	 *   recursively checking if the resulting object is used as a base
-	 *   for some more deltas.
-	 * - if the same object exists in repository and we're not in strict
-	 *   mode, we skipped the sha-1 collision test in the first pass.
-	 *   Do it now.
-	 */
 	if (verbose)
 		progress = start_progress("Resolving deltas", nr_deltas);
 	for (i = 0; i < nr_objects; i++) {
 		struct object_entry *obj = &objects[i];
-		struct base_data *base_obj = alloc_base_data();
 
 		if (is_delta_type(obj->type))
 			continue;
 
-		if (((!strict && !verify) ||
-		     (strict && !verify && obj->type == OBJ_BLOB)) &&
-		    has_sha1_file(obj->idx.sha1)) {
-			void *data = get_data_from_pack(obj);
-			sha1_object(data, obj->size, obj->type, obj->idx.sha1);
-			free(data);
-		}
-
-		base_obj->obj = obj;
-		base_obj->data = NULL;
-		find_unresolved_deltas(base_obj);
-		display_progress(progress, nr_resolved_deltas);
+		second_pass(obj);
 	}
 }
 
-- 
1.7.8.36.g69ee2
Previous: Nguyễn Thái Ngọc DuyNext: Nguyễn Thái Ngọc Duy
Message 4 of 5 in “index-pack improvements”
  1. 0/4 index-pack improvementsNguyễn Thái Ngọc Duy, Feb 25, 2012
  2. 1/4 index-pack --verify: skip sha-1 collision testNguyễn Thái Ngọc Duy, Feb 25, 2012
  3. 2/4 index-pack: reduce memory usage when the pack has large blobsNguyễn Thái Ngọc Duy, Feb 25, 2012
  4. 3/4 index-pack: move second pass code into separate functionNguyễn Thái Ngọc Duy, Feb 25, 2012
  5. 4/4 index-pack: support multithreaded delta resolvingNguyễn Thái Ngọc Duy, Feb 25, 2012

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